Which one of the following property scopes is not supported by PHP?

What does PDO stand for?

 Which method is used to tweak an object’s cloning behavior? 

In PHP  the ____ file mode  open a file for read-only. File pointer starts at the beginning of the file 

 Which one of the following function is capable of reading a file into an array?

Which function returns the port number of a specified service?

What is the default number of seconds that cached session pages are made available before the new pages are created? 

  If the directive session.cookie_lifetime is set to 3600, the cookie will live until ____________

How do you correctly access a class constant named PI in the mathFunction class?

 What will be the output of the following PHP code? 

<?php

$num = "123";

if (!filter_var($num, FILTER_VALIDATE_INT))

echo("Integer is not valid");

else

echo("Integer is valid");

?>